Oops, sorry John about the somewhat erroneous info on
csoundModuleDestroy!  Istvan, what is the difference between note
turnoff and deactivation?  I had recoded fluidOpcodes to use that
facility and it seemed to run everytime the note turned off, but I had
not tested midi-initiated notes or tied-notes, so am curious about the
differences.

Thanks,
steven

On 6/15/05, Istvan Varga <istvan_v@fibermail.hu> wrote:
> jpff@codemist.co.uk wrote:
> 
> > I seem to remember that the deinit of opcodes was removed.  How does
> > one do the equivalent action in cs5?
> > ==John ffitch
> 
> It depends on when you want the deinit routine to be called.
> There are functions in the API to register a callback to be
> called by deact() or csoundReset() (the latter is actually used
> by the OSC listener opcodes you are just working on):
> 
>    /**
>     * Register a function to be called at note deactivation.
>     * Should be called from the initialisation routine of an opcode.
>     * 'p' is a pointer to the OPDS structure of the opcode, and 'func'
>     * is the function to be called, with the same arguments and return
>     * value as in the case of opcode init/perf functions.
>     * The functions are called in reverse order of registration.
>     * Returns zero on success.
>     */
>    PUBLIC int csoundRegisterDeinitCallback(void *csound, void *p,
>                                            int (*func)(void *, void *));
> 
>    /**
>     * Register a function to be called by csoundReset(), in reverse order
>     * of registration, before unloading external modules. The function takes
>     * the Csound instance pointer as the first argument, and the pointer
>     * passed here as 'userData' as the second, and is expected to return zero
>     * on success.
>     * The return value of csoundRegisterResetCallback() is zero on success.
>     */
>    PUBLIC int csoundRegisterResetCallback(void *csound, void *userData,
>                                           int (*func)(void *, void *));
> 
> There are no callbacks for note turnoff (as opposed to deactivation) and
> section end yet, but can be easily added if there is a demand.
> 
> 
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